... zero." ,0x11 DMA channel 1, "test." ,0x12, "testing the DMA page registers." ,0x13, "test 8741 keyboard controller interface." ,0x14, " ... test 8259 interrupt function." ,0x23, "test protection way, the virtual way and page way." ,0x24, "more than 1Mb expanded memory test." ... ,0x25 Chu, "after the first test all the memory. A64k" / ...